I'm not personally a fan of visual novels, but I do use some VN-style cutscenes in other genres of games. I found this introduction to be well-thought-out, with some solid advice on many topics of interest to both VN developers and other game devs who borrow VN style conventions like me.
So, good stuff here! And good on you for making a detailed, approachable resource for people looking to get into the field. Well done.